package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 根据分类id查询菜品
     *
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        log.info("根据分类id查询菜品，登录id-->{}...", BaseContext.getCurrentId());
        //获取缓存的菜品
        String radisKey = "dish_list_category_id"+categoryId;
        ValueOperations valueOperations = redisTemplate.opsForValue();
        Object o = valueOperations.get(radisKey);
        if(o instanceof List)
            return Result.success((List<DishVO>) o);

        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

        List<DishVO> list = dishService.listWithFlavor(dish);

        //没有radis缓存，就缓存一份，使用string
        if(!(o instanceof List))
            valueOperations.set(radisKey, list);

        return Result.success(list);
    }

}
